Marketing Metrics

Attribution Window

2026-05-31 8 min read

An attribution window is the time period during which a conversion can be credited to a marketing touchpoint. Common windows: 1-day view / 7-day click for digital ads; 30/60/90-day post-click for B2B; 90/180-day for long-cycle enterprise. Attribution windows are the single most underrated lever in ad measurement — shortening windows reduces credited ROAS by 30–50% in most DTC accounts. Post-iOS 14, platform-default windows shortened materially.

TL;DR

An <strong>attribution window</strong> is the time period during which a conversion can be credited to a marketing touchpoint. Common windows: 1-day view / 7-day click for digital ads; 30/60/90-day post-click for B2B; 90/180-day for long-cycle enterprise. Attribution windows are the single most underrated lever in ad measurement — shortening windows reduces credited ROAS by 30–50% in most DTC accounts. Post-iOS 14, platform-default windows shortened materially.

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Sources

Definitions and benchmarks reference primary sources from the D2C Metrics pillar. Verified at publication.

  1. 1 DTC State of the Industry 2025 — Common Thread Collective, 2025. View source .
  2. 2 Shopify Plus DTC Benchmarks 2025 — Shopify, 2025. View source .
  3. 3 Klaviyo Ecommerce Benchmarks — Klaviyo, 2025. View source .
  4. 4 Northbeam DTC Marketing Report — Northbeam, 2025. View source .

Fairview cites primary sources only — government data, academic research, industry benchmarks from named publishers, and official vendor documentation. See our editorial standards.